The ba dum tss sting comes from vaudeville and early stand-up comedy, where pit drummers punctuated jokes with a snare hit and cymbal crash, a technique drummers call a rimshot. It became a universal shorthand for a corny punchline through decades of comedy clubs, sitcoms and cartoons. Online, the sting turned into a meme in its own right, and deliberately cheap or sloppy versions like this one are used to roast the joke itself, signaling to the audience that the gag was meant to flop.